30. Subject to a consultation by the Régie with the associations or groups of producers in the zone, the establishment of a group insurance plan may be ordered by the Government in any zone which the Régie may determine by regulation if it is proved to the satisfaction of the Government:(a) that a sufficient number of producers of the zone agree thereto or
(b) that the producers of the zone whose crops represent a sufficient proportion of the insurable value of all the crops in the zone, agree thereto.
Subject to the consultation provided for in the first paragraph, such a plan, once established, shall not be abolished except where it is proved to the satisfaction of the Government:(a) that a sufficient number of the insured producers of the zone are in favour of its abolition or
(b) that the insured producers of the zone whose crops represent a sufficient proportion of the insurable value of all the crops in the zone, are in favour of its abolition.